Electronic device with text error correction based on voice recognition data

ABSTRACT

During operation of an electronic device such as a cellular telephone with a touch screen display or other electronic equipment, a voice recognition engine may gather data on spoken words. Data on the spoken words that are recognized may be maintained in a spoken word database maintained by an input processor with an autocorrection engine. A user may supply text input that contains mistyped words to the electronic device using the touch screen or a keyboard. The input processor may use the autocorrection engine to automatically replace mistyped words with corrected versions of the mistyped words. The corrected words may be displayed in real time as the user supplies the text input. The autocorrection engine may make word correction decisions based at least partly on information in the spoken word database.

BACKGROUND

This relates generally to systems that assist users in entering text correctly and, more particularly, to systems in which text corrections are made based on voice recognition data.

Users of computing equipment such as computers and handheld devices may enter text using input-output equipment. In a typical scenario, a user of a desktop computer may enter text into a word processing program or other software application using a keyboard. In devices with touch screens such as cellular telephones and tablet computers, user may enter text by tapping on on-screen keys.

Users are not perfectly accurate when entering text, particularly in situations in which a user is using small keys or when a user is distracted. As a result, user-entered text may contain errors.

Error correction capabilities are provided in many devices to assist a user in accurately entering text. Automatic error correction functions are generally implemented using a dictionary of known words. When a user enters a character sequence that does not correspond to a known word, the character sequence may be corrected. In some situations, a mistyped word may be automatically replaced with a corresponding correct word. In other situations, such as when a user pauses after entering a word, the user may be presented with a list of possible alternatives from which the correct word may be selected.

Error correction functions such as these are unaware of the user's environment. As a result, autocorrection accuracy is limited. Mistyped words are generally replaced with commonly used words. While this type of approach may be satisfactory in some circumstances, there are limits to the accuracy level that may be achieved.

It would therefore be desirable to be able to provide improve systems for assisting a user in making corrections when entering text.

SUMMARY

Electronic devices such as cellular telephones and other computing equipment may contain touch screens and other displays. A user of an electronic device may supply text input that contains mistyped words. For example, a user may press an incorrect sequence of letter keys when typing a message or other document.

A microphone in an electronic device may be used to gather sound. The microphone may be used, for example, to gather spoken words in the vicinity of the electronic device. A voice recognition engine may be used to process signals from the microphone. Information on recognized spoken words may be stored in the electronic device. For example, a database that reflects the identity and frequency of various spoken words that have been recognized by the voice recognition engine may be maintained by an autocorrection engine.

As the user supplies the text input to an electronic device, the autocorrection engine may use information in the spoken word database to determine how best to perform autocorrection operations. The presence of a particular spoken word may, for example, help the autocorrection engine determine which of several possible replacement words would be most suitable to use to replace a mistyped word. By using contextual information from the spoken word database in addition to other information, autocorrection accuracy can be enhanced.

Autocorrection operations may be fully automated. With this type of arrangement, the autocorrection engine may make a word replacement automatically in response to receiving a space character or other such separator character from a user that indicates that the user has finished entering a particular word. Semi-automated correction techniques may also be used. For example, an autocorrection engine may display a list of potential word replacements for a user when a user pauses after entering a mistyped word. The order of the potential word replacements in the list may be influenced by the information in the spoken word database. For example, potential replacement words that match frequently spoken words may be provided with elevated prominence in the list.

Further features of the invention, its nature and various advantages will be more apparent from the accompanying drawings and the following detailed description of the preferred embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of an illustrative electronic device that may be used to gather voice recognition information while a user is making text entries in accordance with an embodiment of the present invention.

FIG. 2 is a diagram of an illustrative electronic device of the type shown in FIG. 1 in accordance with an embodiment of the present invention.

FIG. 3 is a diagram of software components that may be run on a system of the type shown in FIG. 2 to implement automatic correction features in accordance with an embodiment of the present invention.

FIGS. 4A, 4B, and 4C are tables showing illustrative autocorrection data that may be maintained by an autocorrection system in accordance with an embodiment of the present invention.

FIG. 5 is a diagram showing the operation of an illustrative device that is using voice-recognition-assisted autocorrection features in accordance with an embodiment of the present invention.

FIG. 6 is a flow chart of illustrative steps involved in using spoken word input and text input in performing text autocorrection operations in accordance with an embodiment of the present invention.

DETAILED DESCRIPTION

Electronic devices may be provided with the ability to process text and voice input. Text input may sometimes contain errors. An electronic device may be provided with autocorrection capabilities to handle erroneous text. The autocorrection capabilities may be implemented using an autocorrection engine. The autocorrection engine may gather voice data using a voice recognition engine. The voice data may include words that have been spoken and recognized by the voice recognition engine. During autocorrection operations, these spoken words may be used to provide context to the autocorrection engine that enhances autocorrection accuracy.

Autocorrection operations may be performed using equipment of the type shown in FIG. 1. As shown in FIG. 1, a user may interact with an electronic device such as device 10 and may interact with additional equipment such as computing equipment 86. Computing equipment 86 may be, for example, an accessory that operates with device 10, a server that device 10 can communicate with over a communications path such as a wired or wireless link such as link 84, or other suitable electronic equipment. Autocorrection software in the system of FIG. 1 may run on the hardware of device 10, on the hardware of device 86, on both device 10 and device 86, or other suitable computing equipment. Arrangements in which autocorrection functions are implemented using the resources of device 10 are sometimes described herein as an example. This is merely illustrative. Any suitable computing equipment or combination of local and online resources may be used in implementing autocorrection functions if desired.

Device 10 may be a desktop computer, a laptop computer, a tablet computer, a handheld computing device such as a cellular telephone, media player, gaming device, or navigation device, a pendant or wristwatch device, consumer electronics equipment such as a set-top box, television, or stereo system, or other electronic equipment. Illustrative examples of devices such as cellular telephones, media players, and tablet computers are sometimes described herein as an example.

As shown in FIG. 1, device 10 may include a housing such as housing 12. Housing 12 may be formed from metal, plastic, or other materials. Openings may be formed in housing 12 to form ports. Device 10 may include, for example, ear speaker port 18, speaker port 22, electrical connector port 88, and microphone port 20. Device 10 may also include one or more buttons such as button 16.

User text input may be provided to device 10 using an integral keyboard or an external keyboard, using a soft set of keys on a touch screen, or using other suitable input equipment. In the example of FIG. 1, device 10 includes a touch screen display 14. Display 14 includes portion 14T for displaying text 26 to a user and portion 14B for accepting text entry from a user. On-screen keys (character selection options) 24 may be displayed within region 14B using a layout such as a QWERTY layout or an alphabetical layout. When a user's finger touches a particular one of on-screen keys 24, device 10 can recognize which key was selected and can display an associated character as part of text 26 in region 14T.

The arrangement of FIG. 1 is merely illustrative. If desired, a wireless or wired keyboard may be used to provide device 10 with text input, a user may enter characters using keys in a keypad on device 10, etc.

FIG. 2 is a schematic diagram showing illustrative components of equipment such as device 10 of FIG. 1. As shown in FIG. 2, device 10 may include storage and processing circuitry (control circuitry) 74. Storage and processing circuitry 74 may be implemented using one or more integrated circuits. Storage 76 may include flash memory, hard disk drive memory, solid state storage devices, other nonvolatile memory, random-access memory and other volatile memory, etc. Processing circuitry 78 may include digital signal processors, microcontrollers, application specific integrated circuits, microprocessors, power management unit (PMU) circuits, circuits for processing touch sensor input, audio codec circuits that include analog-to-digital converter circuitry and digital-to-analog converter circuitry, and processing circuitry that is part of other types of integrated circuits.

Device 10 may include input-output devices 80 such as displays, speakers, microphones, status indicator light-emitting diodes, sensors such as proximity sensors and accelerometers, touch screens, data port circuits coupled to data ports, analog input-output circuits coupled to audio connectors and other analog signal ports, track pads and other pointing devices, keyboards, key pads, buttons, wireless communications circuitry for forming links such as link 84 with equipment 86, etc.

The components of storage 76, processing circuitry 78, and input-output devices 80 need not be mutually exclusive. For example, processing circuitry 78 may contain memory, storage 76 may include circuitry that performs processing functions, and input-output circuitry 80 may include storage circuits and processing circuits.

During operation of device 10, device 10 may gather input. For example, a finger such as finger 81 or other external object may be used to touch keys 24 (e.g., on-screen keys) or keys in a keyboard in circuitry 80. Text may be entered one character after another to form text strings (e.g., words). For example, text may be entered when a user is composing a document such as an email message, a text message, a spreadsheet, or a word processing document, or when a user is otherwise interested in providing software on device 10 with text input (e.g., when filing in a dialog box, when entering a search term into a browser, when entering information into a calendar application, when performing operating system functions such as file search functions and command line functions, etc.).

In addition to gathering text input from a user, device 10 may use a microphone in circuitry 80 (e.g., a microphone within port 20) to gather audio input (sound) from a source such as sound source 82. Source 82 may be a person other than the user who is in the vicinity of device 10 and the user, may be the user of device 10, may be a person who is having a voice telephone call with the user over a cellular network or wireless local area network, or other suitable source of spoken word content (voice information in audio form). Device 10 may use input-output circuitry 80, processing circuitry 78, and storage 76 to perform voice recognition operations. For example, voice recognition engine code for performing voice recognition operations may be stored on storage 76, the code may be executed using processing circuitry 78, and, during execution of the voice recognition code, input-output circuitry 80 may use a microphone to gather sound such as spoken words and may digitize and recognize the gathered sound as words using an analog-to-digital converter and the resources of storage and processing circuitry 74.

Words that are recognized using voice recognition may be maintained in a database. The words that are detected in this way may be used to provide an autocorrection engine in device 10 with additional context to use in performing text autocorrection operations. If, for example, a user misspells a word, device 10 can consult a list of recently recognized words in the database to determine whether a correct version of the misspelled word is present. In situations in which multiple correctly spelled words are similar in spelling to a misspelled word, the use of the words in the voice recognition database may help device 10 decide which word is correct.

Autocorrection functions may be implemented using an input processor having an autocorrection capability. An input processor with autocorrection capabilities (i.e., an input engine with an autocorrection engine) may be implemented using code that is stored in storage 76, that is executed using processing circuitry 78, and that uses input-output circuitry 80 (e.g., to gather user input and to display text and other output for the user).

Software that may be executed on device 10 of FIG. 2 is shown in FIG. 3. The software components of FIG. 3 may be implemented as applications, as parts of applications, as online services, as operating system functions, as blocks of code that are called by applications, operating system functions, or online services, as processes that run on localized or distributed equipment, as hardware-accelerated software, or as any other suitable software. As shown in FIG. 3, user text input 38 may be supplied to input processor 30. User text input 38 may be gathered from a user using text processing interface 34. Interface 34 may use hardware resources such as a keyboard and/or touch screen (on-screen) keyboard to gather text character entries by a user. Spoken input 40 (e.g., sound containing words) may be gathered using voice recognition engine 36. Voice recognition engine 36 may maintain a database of word sounds and words to allow gathered sound to be identified as particular words. Engine 36 and interface 34 may run on circuitry such as storage and processing circuitry 74 of FIG. 2 and may use the resource of circuitry 80.

Input processor and autocorrection engine 30 may maintain one or more database such as database 32. Database 32 may contain a dictionary of correctly spelled words, may contain mappings from common misspellings to correct spellings, and other data that input processor and autocorrection engine 30 may use in correcting errors in text input 38. Text that is supplied as input 38 (possibly containing errors) may be corrected by input processor 30 and the corresponding corrected version of the text input may be provided to software such as application 28 that uses text input. Software 28 may be an operating system function, a word processor that displays text in the form of text documents, an email client that displays text for the body of email messages, a spreadsheet program that displays text as part of a spreadsheet, an instant messaging client that displays text associated with text messages, or other suitable software.

Spoken words that are recognized by voice recognition engine 36 and information on their frequency and timing may be stored in autocorrection database 32. If, for example, a user of device 10 is in the vicinity of a lecturer in a lecture hall, input processor 30 may store words from a lecture that is being presented by the lecturer in database 32. As input processor 30 analyzes errors in text input 38 to determine how best to correct these errors, input processor 30 may consult the contents of database 32. The recognized spoken words from the lecture that are stored in database 32 may provide useful contextual information that assists input processor 30 in accurately determining how to proceed in correcting errors. If, for example, a word such as “hit” has recently been spoken, input processor 30 may use this information in determining that a mistyped word such as “het” should be corrected to read as “hit” rather than being corrected to read as “the.”

The amount of influence that the recognized words in database 32 have on the operation of input processor 30 may vary as a function of time and other factors. If, for example, a particular word was recently spoken, that word may be given more influence in determining the outcome of a particular error correction operation than if the word was not recently spoken. Illustrative time frames for maintaining spoken words in database 32 include ten seconds, less than ten seconds, 30 seconds or less, 1-5 minutes or less, 20 minutes or less, 1-10 hours, 1-10 days, etc.

User agreement (e.g., in the form of user selection of a particular correction from a list of possible corrections) may be used to help train input processor 30. For example, if a spoken word that was recognized by voice recognition engine 36 and that was stored in database 32 is presented to the user as a possible replacement for a mistyped word, the user may select that word to use as a replacement for the mistyped word (e.g., by selecting an on-screen option on display 14). Input processor 30 may use database 32 to maintain information on user-confirmed corrections of this type (sometimes referred to as semiautomatic corrections) and may use this information to improve autocorrection accuracy (e.g., by making the user-selected correction more prominent in subsequently displayed lists of possible corrections, by using the user-selected correction when appropriate during operation in a fully automatic correction mode, etc.).

Autocorrection database information such as information in database 32 that includes voice recognition data from voice recognition engine 36 (e.g., recognized versions of the words in spoken input 40) may be stored in one or more tables or other suitable data structures. Illustrative database tables of the type that may be used in database 32 are shown in FIGS. 4A, 4B, and 4C.

In the scenario of FIG. 4A, device 10 is being operated in a quiet environment, devoid of spoken words. As a result, there are no voice-recognition entries from voice recognition engine 36 in database 32. Table 42 of the example of FIG. 4A has three columns. Column 44 contains entries corresponding to potential text input (e.g., typed text entries). In an environment in which spoken words are recognized by voice recognition engine 36, column 46 would be populated with the words that were recognized by voice recognition engine 36 (e.g., words that were recognized within a suitable period of time before the present time, as described in connection with FIG. 3). In the example of FIG. 4A, the operating environment of device 10 is quiet, so column 46 is empty. Column 48 contains suitable corrected versions of the words appearing in the same row of column 44.

During operation of device 10 input processor 30 may use table 42 of FIG. 4A to determine how to correct text input 38. If, for example, a user types the string “the” into device 10, the string “the” will be received by text processing interface 34 (FIG. 3) and processed by input processor 30 to remove errors. As shown in the first row of table 42 in FIG. 4A, the word “the” in column 44 is a valid (correct) word, so the corresponding corrected version of the word “the” in column 48 (i.e., the string “the” in the first row of column 48) is unchanged. If a user mistypes the word “the,” however, the user's mistake may be corrected by the autocorrection engine of input processor 30. For example, if the user types “het” (see, e.g., the second row of column 44 in table 42 of FIG. 4A), input processor 30 may replace the text “het” with the corrected version of this string (i.e., the text “the” from the second row of column 48 in table 42 of FIG. 4A).

In an environment in which voice recognition engine 36 is able to recognize the presence of words of spoken input 40, the presence of the recognized words may be reflected in database 32. As shown in the scenario of FIG. 4B, for example, database 32 may contain information such as the information in column 46 that reflects the recent detection of the spoken word “hit” by voice recognition engine 36. This information may be stored in a database table or using any other suitable format. In situations in which the word “hit” has recently been spoken, it is appropriate to perform autocorrection operations differently than in situations in which no words have been spoken. If the user types a word correctly (as with “the” in the first row of column 44 in table 42 of FIG. 4B), processor 30 may perform the same type of correction as in the scenario of FIG. 4A (i.e., by leaving the “the” entry unchanged as shown by the entry in the first row of column 48 in table 42 of FIG. 4B). If, however, the user types “het” (as shown in the second row of column 44 of table 42 of FIG. 4B), input processor 30 may change “het” to “hit.” In the presence of recent occurrences of the spoken word “hit,” it is more appropriate to change “het” to “hit” (as in FIG. 4B) than to change “het” to “the” (as in FIG. 4A). The use of recognized spoken word data (i.e., the “hit” information shown in column 46 of table 42 in FIG. 4B) by input processor 30 may therefore allow processor 30 to correct errors in text input 38 with enhanced accuracy.

FIG. 4C shows how autocorrection accuracy may be improved in another scenario. In the example of FIG. 4C, spoken input 40 such as the spoken word “ETA” (which may be pronounced, “eta” or as individual letters in an acronym such as “e” . . . “t” . . . “a”) has been detected by voice recognition engine 36 and stored in database 32 (depicted as the entry in column 46 of table 42 in FIG. 4C). In this type of environment (i.e., because “eta” was recognized rather than “hit” as in the FIG. 4B example), input processor 30 may correct the mistyped word “het” by replacing “het” with “eta” as shown in the first row of columns 44 and 48 of table 42 in the FIG. 4C example, rather than by replacing “het” with “hit” as in the FIG. 4B example. The presence of different spoken words in database 32 may therefore influence the types of real time correction that are made on text input 38. The prevalence of each word may be represented by weighting factors, using histograms (e.g., word count totals in a given time period), using time-weighted averages, or may otherwise be used to influence which correction is made by input-processor 30. The simplified examples of FIGS. 4B and 4C in which only a single detected spoken word is being maintained in database 32 are merely illustrative.

FIG. 5 shows how the process of correcting a mistyped word (“het”) with a corrected word (“hit,” as in the example of FIG. 4B) may be performed by input processor 30.

Initially, a user may enter the character “h” (shown in box 50 of FIG. 5). This letter may be displayed immediately for the user on display 14. When the user types “e” into device 10, device 10 may display the “e” adjacent to the “h” to form the string “he” (shown in box 52). If the user continues typing and enters the character “t,” device 10 may display “het” on display 14 (see box 54 of FIG. 5).

The behavior of device 10 after the user types the misspelled word “het,” may depend on whether the user continues typing or whether the user pauses (as an example). If the user continues typing by typing a space character, the incorrect word “het” and the space character may be displayed on display 14 (see box 56) in response to detection of the space character (or other such separator character). In this situation, the fully automatic correction capabilities of the autocorrection engine in input processor 30 may be used to automatically correct the incorrect word “het” by replacing “het” with “hit” on display 14 in real time (see, e.g., box 58).

If, however, the user pauses (e.g., for a fraction of a second or longer) after typing “het” (box 54), input processor 30 may present the user with a list of possible choices for replacement words. As shown in box 60 of FIG. 5, for example, the user may be presented with the suggested corrections of “hit” and “the.” The user may select a desired correction from the displayed list (e.g., by using a touch command such as a tap on the desired correction or by moving a movable highlight followed by an enter command).

In the example of FIG. 5, the user has selected the replacement word “hit” to use in correcting the incorrect text “het.” In presenting suggested corrections in the correct words list of box 60, input processor 30 may more prominently display words that are more likely to be correct than words that are less likely to be correct. For example, words that are more likely to be correct (i.e., “hit” in this example) may be displayed in list 60 above words that are less likely to be correct (i.e., “the” in this example). The ordering of the words in list 60 may be influenced by the contents of the recognized words in database 32 (i.e., the presence of a recently spoken word “hit” in this example). Depending on which words were most recently spoken (and/or which words were spoken most frequently), certain words may be moved up or down in list 60.

Illustrative steps involved in operating device 10 in an environment in which spoken words are present while a user is supplying text to the device are shown in FIG. 6.

At step 64, device 10 may gather input from the environment. During the operations of step 66, for example, voice recognition engine 36 of input processor 30 (FIG. 3) may use a microphone and other input-output circuitry 80 in converting spoken input 40 from sound source 82 into recognized words in database 32. Any suitable type of information may be maintained on words that have been recognized by voice recognition engine 36 in database 32, such as information on when the words were recognized (e.g., in the form of a time stamp or data indicating detection within a moving time window), how frequently the words occur (e.g., in the form of raw data or a normalized histogram or other data structure that reflects whether the prevalence of a particular spoken word within a certain time period is higher or lower than would normally be expected), whether the spoken words grammatically agree with other spoken and/or typed words, or other information regarding the expected popularity of the spoken words relative to typed text and/or spoken word context. This data may be used in enhancing auto correction accuracy.

During the operations of step 68, text input may be gathered from a user. For example, a touch sensor with soft keys or a keyboard in circuitry 80 may be used to gather text input 38 corresponding to touch screen touch events and/or key presses by a finger or other external object (object 81 of FIG. 2). Characters may, as an example, be entered one at a time as described in connection with FIG. 5. Entered text may be gathered using text processing interface 34 of input-processor 30 (FIG. 3). Words, parts of words, and other character strings may be gathered at step 68.

During the operations of step 70 (some or all of which may be performed simultaneously with the operations of step 64), input processor 30 may use the gathered input from step 64 to update one or more databases in device 10 (represented as autocorrection database 32 in FIG. 3). Database 32 may be updated by include information identifying each spoken word that has been recognized, timing information on each spoken word, information on typed text, information on the timing of typed text, etc. To reduce storage requirements, data may be compressed. For example, spoken word data may be represented using frequency data rather than time-stamped information, may be represented by moving averages or other weighting information, may be maintained only for events within a moving time window (e.g., 5 minutes before the present time to the present time), etc.

Input-output circuitry 80 may display text as it is entered by the user on display 14 (e.g., within a window associated with application 28, within an overlay window controlled by input processor 30, etc.). The boxes of FIG. 5 show how device 10 may display one entered character at a time in real time as the user makes text character entries.

While the user is entering text, the autocorrection functions of input processor and autocorrection engine 30 may be active. Automatic corrections may be made as the text is entered.

As described in connection with boxes 54, 56, and 58 of FIG. 5, autocorrection operations may be fully automated so that mistyped words are replaced automatically with correct words as the user types (i.e., without need for the user to select from a group of proposed replacement words or otherwise supply replacement word choice confirmation input). Fully automated corrections may be made, for example, when a user continues typing after entering a word, as evidenced by entry of one or more spaces, carriage returns, or other separator characters.

As described in connection with boxes 54, 60, and 62 of FIG. 5, autocorrection operations may also be implemented using a semi-automatic approach in which suggested replacement words are displayed on display 14 for selection by the user (i.e., for the user to select by tapping or otherwise highlighting and thereby confirming a selected word as a desired replacement word choice). The prominence of each suggested replacement word in the list of suggested replacement words that is displayed may be varied as a function of the likelihood that each word is a suitable replacement. The words that are the best possible replacements for a mistyped word may, for example, be placed at the beginning of an ordered list rather than at the end of an ordered list or may otherwise be indicated to be the most suitable replacements for the mistyped word. Suggested word prominence on display 14 (e.g., the location of the suggested word within the list of box 60 of FIG. 5) may be determined based at least partly on spoken word information maintained in database 32. For example, if the word “eta” has been recognized as a recent spoken word, the suggested replacement of “eta” for the mistyped word “het” may be given prominence over the suggested word replacement of “the.”

Word corrections may be made automatically as complete words are typed or as parts of words are typed. As indicated by line 72 in FIG. 6, operations may loop back to step 64, so that text input processing operations, voice recognition operations, and autocorrection operations may be performed continuously (e.g., until device 10 is turned off, until application 28 of FIG. 3 is deactivated, etc.).

The foregoing is merely illustrative of the principles of this invention and various modifications can be made by those skilled in the art without departing from the scope and spirit of the invention. 

1. A method of operating an electronic device that has input-output circuitry including a microphone and that has storage and processing circuitry that includes a display, comprising: recognizing spoken words with the microphone of the input-output circuitry and the storage and processing circuitry; and as a user of the electronic device enters text input into the input-output circuitry, using the input-output circuitry and the storage and processing circuitry to display corresponding automatically corrected text on the display based at least partly on the recognized spoken words.
 2. The method defined in claim 1 wherein the input-output circuitry comprises a touch screen, the method further comprising gathering the text input from the user with the touch screen.
 3. The method defined in claim 1 wherein the electronic device comprises a cellular telephone and wherein the input-output circuitry comprises a touch screen, the method further comprising gathering the text input from the user with the touch screen.
 4. The method defined in claim 1 wherein the input-output circuitry comprises keys, the method further comprising gathering the text input from the user with the keys.
 5. The method defined in claim 1 wherein the input-output circuitry comprises a keyboard, the method further comprising gathering the text input from the user with the keyboard.
 6. The method defined in claim 1 wherein the input-output circuitry gathers the text input one character at a time as the user makes text character entries and wherein using the input-output circuitry and the storage and processing circuitry to display the corresponding automatically corrected text on the display comprises automatically replacing mistyped words in the text input with replacement words without obtaining replacement word choice confirmation input at the electronic device from the user.
 7. The method defined in claim 1 wherein using the input-output circuitry and the storage and processing circuitry to display the corresponding automatically corrected text on the display comprises automatically substituting a replacement word on the display in response to gathering a space character as part of the text input.
 8. The method defined in claim 1 wherein the input-output circuitry gathers the text input one character at a time as the user makes text character entries and wherein using the input-output circuitry and the storage and processing circuitry to display the corresponding automatically corrected text on the display comprises automatically replacing a mistyped word in the text input with a replacement word in response to receiving a user-supplied confirmation of which of a plurality of displayed potential word replacements is to be used as the replacement word.
 9. An electronic device, comprising: storage and processing circuitry; and input-output circuitry coupled to the storage and processing circuitry, wherein the input-output circuitry comprises a microphone for gathering spoken word data corresponding to spoken words, wherein the input-output circuitry is configured to receive text input supplied by a user of the electronic device, wherein the input-output circuitry comprises a display, and wherein the storage and processing circuitry and the input-output circuitry are configured to correct mistyped text words in the text input by displaying replacement text words on the display that correspond to the mistyped text words based at least partly on the gathered spoken word data.
 10. The electronic device defined in claim 9 wherein the storage and processing circuitry and the input-output circuitry are configured to maintain the spoken word data in a database that includes information on when the spoken words were spoken.
 11. The electronic device defined in claim 9 wherein the storage and processing circuitry and the input-output circuitry are configured to maintain the spoken word data in a database.
 12. The electronic device defined in claim 11 wherein the storage and processing circuitry and the input-output circuitry are configured to implement a voice recognition engine that recognizes the spoken words and that supplies the spoken word data for the database.
 13. The electronic device defined in claim 12 wherein the storage and processing circuitry and the input-output circuitry are configured to implement a text processing interface that gathers the text input from the user.
 14. The electronic device defined in claim 13 wherein the input-output circuitry comprises a touch screen and wherein the text processing interface uses the touch screen in gathering the text input from the user.
 15. The electronic device defined in claim 13 wherein the input-output circuitry comprises a keyboard and wherein the text processing interface uses the keyboard in gathering the text input from the user.
 16. The electronic device defined in claim 13 wherein the storage and processing circuitry and the input-output circuitry are configured to display the replacement words for the mistyped words in the text input automatically without obtaining replacement word choice confirmation input at the electronic device from the user.
 17. The electronic device defined in claim 13 wherein the storage and processing circuitry and the input-output circuitry are configured to display the replacement words for the mistyped words in the text input in response to receiving a user-supplied confirmation of which of a plurality of displayed potential word replacements is to be used as a replacement word.
 18. A method of operating an electronic device having a microphone, a display, and input-output circuitry, comprising: with the input-output circuitry, gathering text input that contains mistyped words from a user of the electronic device; with a voice recognition engine implemented on the electronic device and with the microphone, recognizing spoken words; and based at least partly on the recognized spoken words, displaying corrected versions of the mistyped words on the display.
 19. The method defined in claim 18 wherein the input-output circuitry comprises a touch sensor in the display and wherein gathering the text input comprises gathering the text input using the touch sensor.
 20. The method defined in claim 19 wherein displaying the corrected version of the mistyped words on the display comprises automatically displaying corrected versions of the mistyped words in response to detection of user-supplied space characters. 